Commit graph

10 commits

Author SHA1 Message Date
Dave Collins
2eea55ae1d Prune the btcddb.Db interface.
This commit prunes several unused functions from the Db interface and the
underlying implementations.  For the most part these are holdovers from
the original sqlite implementation.  It also removes the types associated
with those functions since they are no longer needed.  The following
functions and types have been removed:

- InvalidateCache
- InvalidateBlockCache
- InvalidateTxCache
- SetDBInsertMode
  - InsertMode type and associated constants
- NewIterateBlocks
  - BlockIterator interface

The reasons for removing these are broken out below.

- Neither of two current implementations implement these functions nor
  does any of the fully functional code using the interface invoke them.
- After contemplating and testing caching of blocks and transactions at
  this layer, it doesn't seem to provide any real benefit unless very
  specific assumptions about the use case are made.  Making those
  assumptions can make other use cases worse.  For example, assuming a
  large cache is harmful to memory-constrained use cases.  Leaving it up
  to the caller to choose when to cache block and transactions allows much
  greater flexibility.
- The DB insert mode was an artifact of the original sqlite implementation
  and probably should have only been exposed specifically on the
  implementation as opposed through generic interface.  If a specific
  implementation wishes to provide functionality such as special modes,
  that should be done through type assertions.
2014-01-19 18:01:05 -06:00
Dave Collins
6b18796af7 Add 2014 to copyright dates. 2014-01-08 23:54:52 -06:00
Dave Collins
1f87ee217a Move testdata to root btcd directory.
Rather than duplicating the same data, just put it under testsdata at the
root and access it from the modules from the parent directory.
2013-10-12 01:49:57 -05:00
Dale Rahn
cda0b10082 Introduce an API change for btcdb
FetchTxBySha changes what it returns, it can now return a TxListReply and
and error if none are found.

FetchTxByShaList is renamed to FetchUnSpentTxByShaList to indicate that
it will (likey/eventually) only return Tx that have some unspent TxOuts.
Tx which are fully spent may not be (reliably) looked up using this API.
2013-10-03 16:51:34 -04:00
Dale Rahn
63f8993163 Delete testing operations from obsolete functions. 2013-10-02 18:10:00 -04:00
Dale Rahn
3640f6d37c Version the leveldb (and keep compatibility with pre-versioned uncompressed databases. 2013-09-25 17:23:34 -04:00
Dale Rahn
9e27c82a23 Fix error messages (pointed out by go vet) 2013-09-13 11:49:30 -04:00
Dave Collins
85553133ce gofmt. 2013-09-10 10:09:44 -05:00
Dale Rahn
96f7305c29 One DB instad of many.
improved error handling

Fix testing, no point in running tests multiple times

Fix error when no blocks in database, reopen would misreport NewstSha() return
2013-09-10 10:05:26 -04:00
Dale Rahn
b66abdf6ba Initial leveldb code.
This code is still prototype at this time.
It appears to function correctly but something
consumes more memory than is considered reasonable
for the dataset comprised of the full bitcoind chain.

Not recommened for use at this time.
2013-08-22 09:34:50 -04:00